| 沿岸流流速垂向分布的实验研究 |
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| 引用本文： | 张振伟,邹志利.沿岸流流速垂向分布的实验研究[J].海洋通报,2009,28(2). |
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| 作者姓名： | 张振伟 邹志利 |
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| 作者单位： | 大连理工大学海岸与近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，教育部长江学者和创新团队发展计划 |
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| 摘 要： | 进行了沿岸流模型实验,测量沿岸流流速的垂向分布.采用Faria等(1996)的方法对实验结果进行了分析,将水深分为上层和下层两部分:下层采用对数分布来表达沿岸流的垂向分布;上层考虑了波浪引起的自由表面的波动,使流速分布包括了修正的对数分布和质量输移速度两部分.对实验结果得到的相对粗糙度与sleath(1991)的经验公式结果进行了对比,也对摩阻流速结果与已有经验公式计算结果的进行了对比.
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| 关 键 词： | 沿岸流 摩阻流速 相对粗糙度 波浪 |
Experimental Study on the Vertical Distributions of Longshore Currents |
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| ZHANG Zhenwei,ZOU Zhili.Experimental Study on the Vertical Distributions of Longshore Currents[J].Marine Science Bulletin,2009,28(2). |
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| Authors: | ZHANG Zhenwei ZOU Zhili |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering;Dalian University of Technology;Dalian 116024;Liaoning;China |
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| Abstract: | The experiment was conducted to measure the vertical distributions of longshore currents.To express the velocity distribution,Faria's method was used,and the water depth is divided into two parts:the upper layer and the lower layer.It is found from the test data that a logarithmic profile can be used for the lower layer.Due to the presence of waves,the velocity profile for the upper layer is described by using an adjusted logarithmic profile plus the mass transport velocity.Comparisons are made with the Vis... |
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| Keywords: | longshore currents friction velocity relative roughness wave |
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